[BEAM-10937] Tour of Beam: Reading and writing data notebook

examples/notebooks/tour-of-beam/getting-started.ipynb

@@ -246,7 +246,7 @@
         "id": "h0UUmpwRADqA"
       },
       "source": [
-        "> ℹ️  In Beam, you can __NOT__ access the elements from a `PCollection` directly like a Python list.\n",
+        "> ℹ️ In Beam, you can __NOT__ access the elements from a `PCollection` directly like a Python list.\n",
         "> This means, we can't simply `print` the output `PCollection` to see the elements.\n",
         ">\n",
         "> This is because, depending on the runner,\n",
@@ -322,7 +322,7 @@
         "\n",
         "`map` takes a _function_ that transforms a single input `a` into a single output `b`.\n",
         "\n",
-        "> ℹ️ -- For example, we want to multiply each element by 2."
+        "> ℹ️ For example, we want to multiply each element by 2."
       ]
     },
     {
@@ -441,7 +441,7 @@
         "id": "Q06jvwmqOzer"
       },
       "source": [
-        "> ℹ️  Now that we know how `Map` works, we can see what's happening when we print the elements.\n",
+        "> ℹ️ Now that we know how `Map` works, we can see what's happening when we print the elements.\n",
         ">\n",
         "> We have our outputs stored in the `outputs` `PCollection`, so we _pipe_ it to a `Map` transform to apply the\n",
         "> [`print`](https://docs.python.org/3/library/functions.html#print)\n",
@@ -473,7 +473,7 @@
         "`flatMap` takes a function that transforms a single input `a` into an `iterable` of outputs `b`.\n",
         "But we get a _single collection_ containing the outputs of _all_ the elements.\n",
         "\n",
-        "> ℹ️ -- For example, we want to have as many elements as the element's value.\n",
+        "> ℹ️ For example, we want to have as many elements as the element's value.\n",
         "> For a value `1` we want one element, and three elements for a value `3`."
       ]
     },
@@ -608,7 +608,7 @@
         "`filter` takes a function that checks a single element `a`,\n",
         "and returns `True` to keep the element, or `False` to discard it.\n",
         "\n",
-        "> ℹ️ -- For example, we only want to keep number that are *even*, or divisible by two.\n",
+        "> ℹ️ For example, we only want to keep number that are *even*, or divisible by two.\n",
         "> We can use the\n",
         "> [modulo operator `%`](https://en.wikipedia.org/wiki/Modulo_operation)\n",
         "> for a simple check."
@@ -729,7 +729,7 @@
         "\n",
         "Other common names for this function are `fold` and `reduce`.\n",
         "\n",
-        "> ℹ️ -- For example, we want to add all numbers together."
+        "> ℹ️ For example, we want to add all numbers together."
       ]
     },
     {
@@ -851,7 +851,7 @@
         "id": "pFb98ioSp9YU"
       },
       "source": [
-        "> ℹ️  There are many ways to combine values in Beam.\n",
+        "> ℹ️ There are many ways to combine values in Beam.\n",
         "> You could even combine them into a different data type by defining a custom `CombineFn`.\n",
         ">\n",
         "> You can learn more about them by checking the available\n",
@@ -874,7 +874,7 @@
         "but instead of replacing the value on a \"duplicate\" key,\n",
         "you would get a list of all the values associated with that key.\n",
         "\n",
-        "> ℹ️ -- For example, we want to group each animal with the list of foods they like, and we start with `(animal, food)` pairs."
+        "> ℹ️ For example, we want to group each animal with the list of foods they like, and we start with `(animal, food)` pairs."
       ]
     },
     {
@@ -1006,10 +1006,15 @@
       "source": [
         "# What's next?\n",
         "\n",
-        "* [Transform catalog](https://beam.apache.org/documentation/transforms/python/overview/) -- check out all the available transforms\n",
-        "* [Using I/O transforms](https://beam.apache.org/documentation/programming-guide/#pipeline-io) -- learn how to read/write data to/from external sources and sinks like text files or databases\n",
-        "* [Mobile gaming example](https://beam.apache.org/get-started/mobile-gaming-example/) -- learn more about windowing, triggers, and streaming through a complete example pipeline\n",
-        "* [Runners](https://beam.apache.org/documentation/runners/capability-matrix/) -- check the available runners, their capabilities, and how to run your pipeline in them"
+        "* ![Open in Colab](https://github.com/googlecolab/open_in_colab/raw/main/images/icon16.png)\n",
+        "  [Reading and writing data](https://colab.research.google.com/github/apache/beam/blob/master/examples/notebooks/tour-of-beam/reading-and-writing-data.ipynb) --\n",
+        "  how to read and write data to and from different data formats. \n",
+        "* [Transform catalog](https://beam.apache.org/documentation/transforms/python/overview) --\n",
+        "  check out all the available transforms.\n",
+        "* [Mobile gaming example](https://beam.apache.org/get-started/mobile-gaming-example) --\n",
+        "  learn more about windowing, triggers, and streaming through a complete example pipeline.\n",
+        "* [Runners](https://beam.apache.org/documentation/runners/capability-matrix) --\n",
+        "  check the available runners, their capabilities, and how to run your pipeline in them."
       ]
     }
   ]